./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/list-ext3-properties/sll_nondet_insert-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a0165632 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d797d243-11ea-4bbe-9f9c-945f74d9286e/bin/ukojak-verify-ImItNfHLgk/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d797d243-11ea-4bbe-9f9c-945f74d9286e/bin/ukojak-verify-ImItNfHLgk/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d797d243-11ea-4bbe-9f9c-945f74d9286e/bin/ukojak-verify-ImItNfHLgk/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d797d243-11ea-4bbe-9f9c-945f74d9286e/bin/ukojak-verify-ImItNfHLgk/config/KojakReach.xml -i ../../sv-benchmarks/c/list-ext3-properties/sll_nondet_insert-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d797d243-11ea-4bbe-9f9c-945f74d9286e/bin/ukojak-verify-ImItNfHLgk/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d797d243-11ea-4bbe-9f9c-945f74d9286e/bin/ukojak-verify-ImItNfHLgk --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 724878768076b8192fcddec982755d081255c76c80e1e283d808e6a7ebb222b9 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-08 19:31:47,243 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 19:31:47,320 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d797d243-11ea-4bbe-9f9c-945f74d9286e/bin/ukojak-verify-ImItNfHLgk/config/svcomp-Reach-32bit-Kojak_Default.epf [2024-11-08 19:31:47,325 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 19:31:47,326 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-11-08 19:31:47,370 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 19:31:47,373 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 19:31:47,374 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-11-08 19:31:47,375 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 19:31:47,379 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 19:31:47,380 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 19:31:47,380 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 19:31:47,380 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 19:31:47,380 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 19:31:47,381 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 19:31:47,381 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 19:31:47,381 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 19:31:47,382 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 19:31:47,382 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 19:31:47,382 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 19:31:47,383 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 19:31:47,383 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 19:31:47,383 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 19:31:47,384 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-08 19:31:47,384 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-08 19:31:47,384 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-08 19:31:47,385 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 19:31:47,385 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-08 19:31:47,385 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 19:31:47,386 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 19:31:47,386 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 19:31:47,386 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-11-08 19:31:47,387 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 19:31:47,387 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d797d243-11ea-4bbe-9f9c-945f74d9286e/bin/ukojak-verify-ImItNfHLgk/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d797d243-11ea-4bbe-9f9c-945f74d9286e/bin/ukojak-verify-ImItNfHLgk Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 724878768076b8192fcddec982755d081255c76c80e1e283d808e6a7ebb222b9 [2024-11-08 19:31:47,647 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 19:31:47,675 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 19:31:47,678 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 19:31:47,679 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 19:31:47,680 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 19:31:47,681 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d797d243-11ea-4bbe-9f9c-945f74d9286e/bin/ukojak-verify-ImItNfHLgk/../../sv-benchmarks/c/list-ext3-properties/sll_nondet_insert-1.i Unable to find full path for "g++" [2024-11-08 19:31:49,672 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 19:31:49,934 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 19:31:49,935 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d797d243-11ea-4bbe-9f9c-945f74d9286e/sv-benchmarks/c/list-ext3-properties/sll_nondet_insert-1.i [2024-11-08 19:31:49,953 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d797d243-11ea-4bbe-9f9c-945f74d9286e/bin/ukojak-verify-ImItNfHLgk/data/57e311bb0/fabe73645281498d989fdb542db755c5/FLAGb37e9f19e [2024-11-08 19:31:50,268 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d797d243-11ea-4bbe-9f9c-945f74d9286e/bin/ukojak-verify-ImItNfHLgk/data/57e311bb0/fabe73645281498d989fdb542db755c5 [2024-11-08 19:31:50,271 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 19:31:50,273 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 19:31:50,274 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 19:31:50,275 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 19:31:50,280 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 19:31:50,281 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 07:31:50" (1/1) ... [2024-11-08 19:31:50,283 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@58ed78f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:31:50, skipping insertion in model container [2024-11-08 19:31:50,283 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 07:31:50" (1/1) ... [2024-11-08 19:31:50,348 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 19:31:50,778 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d797d243-11ea-4bbe-9f9c-945f74d9286e/sv-benchmarks/c/list-ext3-properties/sll_nondet_insert-1.i[24521,24534] [2024-11-08 19:31:50,783 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 19:31:50,800 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 19:31:50,880 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d797d243-11ea-4bbe-9f9c-945f74d9286e/sv-benchmarks/c/list-ext3-properties/sll_nondet_insert-1.i[24521,24534] [2024-11-08 19:31:50,881 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 19:31:50,925 INFO L204 MainTranslator]: Completed translation [2024-11-08 19:31:50,926 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:31:50 WrapperNode [2024-11-08 19:31:50,926 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 19:31:50,927 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 19:31:50,930 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 19:31:50,930 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 19:31:50,936 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:31:50" (1/1) ... [2024-11-08 19:31:50,950 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:31:50" (1/1) ... [2024-11-08 19:31:50,983 INFO L138 Inliner]: procedures = 129, calls = 33, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 135 [2024-11-08 19:31:50,984 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 19:31:50,984 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 19:31:50,985 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 19:31:50,985 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 19:31:50,995 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:31:50" (1/1) ... [2024-11-08 19:31:50,995 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:31:50" (1/1) ... [2024-11-08 19:31:51,000 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:31:50" (1/1) ... [2024-11-08 19:31:51,000 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:31:50" (1/1) ... [2024-11-08 19:31:51,008 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:31:50" (1/1) ... [2024-11-08 19:31:51,013 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:31:50" (1/1) ... [2024-11-08 19:31:51,015 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:31:50" (1/1) ... [2024-11-08 19:31:51,016 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:31:50" (1/1) ... [2024-11-08 19:31:51,019 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 19:31:51,020 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 19:31:51,021 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 19:31:51,021 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 19:31:51,022 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:31:50" (1/1) ... [2024-11-08 19:31:51,028 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-08 19:31:51,042 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d797d243-11ea-4bbe-9f9c-945f74d9286e/bin/ukojak-verify-ImItNfHLgk/z3 [2024-11-08 19:31:51,072 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d797d243-11ea-4bbe-9f9c-945f74d9286e/bin/ukojak-verify-ImItNfHLgk/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-08 19:31:51,082 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d797d243-11ea-4bbe-9f9c-945f74d9286e/bin/ukojak-verify-ImItNfHLgk/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-08 19:31:51,118 INFO L130 BoogieDeclarations]: Found specification of procedure myexit [2024-11-08 19:31:51,118 INFO L138 BoogieDeclarations]: Found implementation of procedure myexit [2024-11-08 19:31:51,118 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-08 19:31:51,118 INFO L130 BoogieDeclarations]: Found specification of procedure _get_nondet_int [2024-11-08 19:31:51,118 INFO L138 BoogieDeclarations]: Found implementation of procedure _get_nondet_int [2024-11-08 19:31:51,118 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 19:31:51,119 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-08 19:31:51,119 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-11-08 19:31:51,119 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-11-08 19:31:51,119 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-08 19:31:51,119 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2024-11-08 19:31:51,119 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-08 19:31:51,120 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 19:31:51,120 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 19:31:51,248 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 19:31:51,251 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 19:31:51,279 INFO L735 $ProcedureCfgBuilder]: dead code at ProgramPoint myexitFINAL: assume true; [2024-11-08 19:31:51,531 INFO L? ?]: Removed 51 outVars from TransFormulas that were not future-live. [2024-11-08 19:31:51,531 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 19:31:51,637 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 19:31:51,637 INFO L316 CfgBuilder]: Removed 4 assume(true) statements. [2024-11-08 19:31:51,637 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 07:31:51 BoogieIcfgContainer [2024-11-08 19:31:51,640 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 19:31:51,642 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-08 19:31:51,642 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-08 19:31:51,655 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-08 19:31:51,655 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 07:31:51" (1/1) ... [2024-11-08 19:31:51,672 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:31:51,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 19:31:51,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 40 states and 56 transitions. [2024-11-08 19:31:51,755 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 56 transitions. [2024-11-08 19:31:51,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2024-11-08 19:31:51,761 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 19:31:51,763 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:31:51,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:31:51,998 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-08 19:31:52,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 19:31:52,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 40 states and 52 transitions. [2024-11-08 19:31:52,059 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 52 transitions. [2024-11-08 19:31:52,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-11-08 19:31:52,060 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 19:31:52,060 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:31:52,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:31:52,562 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-08 19:31:52,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 19:31:52,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 47 states and 64 transitions. [2024-11-08 19:31:52,770 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 64 transitions. [2024-11-08 19:31:52,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2024-11-08 19:31:52,771 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 19:31:52,772 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:31:52,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:31:53,208 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-08 19:31:53,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 19:31:53,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 49 states and 67 transitions. [2024-11-08 19:31:53,959 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 67 transitions. [2024-11-08 19:31:53,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2024-11-08 19:31:53,960 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 19:31:53,960 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:31:53,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:31:54,242 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-08 19:31:54,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 19:31:54,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 52 states and 72 transitions. [2024-11-08 19:31:54,895 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 72 transitions. [2024-11-08 19:31:54,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2024-11-08 19:31:54,896 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 19:31:54,896 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:31:54,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:31:55,187 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-08 19:31:56,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 19:31:56,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 57 states and 82 transitions. [2024-11-08 19:31:56,792 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 82 transitions. [2024-11-08 19:31:56,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2024-11-08 19:31:56,794 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 19:31:56,795 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:31:56,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:31:57,129 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-08 19:31:58,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 19:31:58,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 61 states and 87 transitions. [2024-11-08 19:31:58,248 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 87 transitions. [2024-11-08 19:31:58,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2024-11-08 19:31:58,250 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 19:31:58,250 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:31:58,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:31:58,505 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-08 19:31:58,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 19:31:58,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 61 states and 86 transitions. [2024-11-08 19:31:58,761 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 86 transitions. [2024-11-08 19:31:58,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2024-11-08 19:31:58,762 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 19:31:58,763 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:31:58,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:31:59,290 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 4 proven. 5 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-08 19:32:01,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 19:32:01,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 66 states and 95 transitions. [2024-11-08 19:32:01,719 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 95 transitions. [2024-11-08 19:32:01,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2024-11-08 19:32:01,720 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 19:32:01,720 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:32:01,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:32:02,679 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-11-08 19:32:10,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 19:32:10,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 89 states and 137 transitions. [2024-11-08 19:32:10,007 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 137 transitions. [2024-11-08 19:32:10,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2024-11-08 19:32:10,009 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 19:32:10,009 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:32:10,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:32:10,225 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-11-08 19:32:10,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 19:32:10,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 90 states and 138 transitions. [2024-11-08 19:32:10,732 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 138 transitions. [2024-11-08 19:32:10,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2024-11-08 19:32:10,733 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 19:32:10,733 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:32:10,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:32:10,925 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2024-11-08 19:32:11,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 19:32:11,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 90 states and 136 transitions. [2024-11-08 19:32:11,275 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 136 transitions. [2024-11-08 19:32:11,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2024-11-08 19:32:11,276 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 19:32:11,277 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:32:11,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:32:13,429 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 5 proven. 12 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-08 19:32:23,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 19:32:23,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 108 states and 168 transitions. [2024-11-08 19:32:23,924 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 168 transitions. [2024-11-08 19:32:23,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2024-11-08 19:32:23,925 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 19:32:23,926 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:32:23,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:32:24,645 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 5 proven. 12 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-08 19:32:26,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 19:32:26,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 111 states and 173 transitions. [2024-11-08 19:32:26,697 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 173 transitions. [2024-11-08 19:32:26,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2024-11-08 19:32:26,699 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 19:32:26,699 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:32:26,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:32:27,378 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 5 proven. 12 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-08 19:32:28,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 19:32:28,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183 states to 112 states and 174 transitions. [2024-11-08 19:32:28,243 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 174 transitions. [2024-11-08 19:32:28,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2024-11-08 19:32:28,244 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 19:32:28,245 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:32:28,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 19:32:28,272 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-08 19:32:28,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 19:32:28,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 19:32:28,384 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-08 19:32:28,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 19:32:28,480 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 15 iterations. [2024-11-08 19:32:28,521 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 08.11 07:32:28 ImpRootNode [2024-11-08 19:32:28,521 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-11-08 19:32:28,522 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-08 19:32:28,522 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-08 19:32:28,522 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-08 19:32:28,522 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 07:31:51" (3/4) ... [2024-11-08 19:32:28,524 INFO L136 WitnessPrinter]: Generating witness for reachability counterexample [2024-11-08 19:32:28,606 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d797d243-11ea-4bbe-9f9c-945f74d9286e/bin/ukojak-verify-ImItNfHLgk/witness.graphml [2024-11-08 19:32:28,609 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-08 19:32:28,610 INFO L158 Benchmark]: Toolchain (without parser) took 38337.48ms. Allocated memory was 151.0MB in the beginning and 360.7MB in the end (delta: 209.7MB). Free memory was 107.6MB in the beginning and 290.2MB in the end (delta: -182.6MB). Peak memory consumption was 30.1MB. Max. memory is 16.1GB. [2024-11-08 19:32:28,611 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 151.0MB. Free memory was 95.7MB in the beginning and 95.6MB in the end (delta: 153.2kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-08 19:32:28,611 INFO L158 Benchmark]: CACSL2BoogieTranslator took 651.97ms. Allocated memory is still 151.0MB. Free memory was 107.6MB in the beginning and 86.8MB in the end (delta: 20.8MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2024-11-08 19:32:28,611 INFO L158 Benchmark]: Boogie Procedure Inliner took 56.68ms. Allocated memory is still 151.0MB. Free memory was 86.8MB in the beginning and 84.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-08 19:32:28,612 INFO L158 Benchmark]: Boogie Preprocessor took 35.07ms. Allocated memory is still 151.0MB. Free memory was 84.7MB in the beginning and 83.1MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-08 19:32:28,612 INFO L158 Benchmark]: RCFGBuilder took 620.85ms. Allocated memory was 151.0MB in the beginning and 207.6MB in the end (delta: 56.6MB). Free memory was 83.1MB in the beginning and 175.7MB in the end (delta: -92.7MB). Peak memory consumption was 29.9MB. Max. memory is 16.1GB. [2024-11-08 19:32:28,613 INFO L158 Benchmark]: CodeCheck took 36878.98ms. Allocated memory was 207.6MB in the beginning and 360.7MB in the end (delta: 153.1MB). Free memory was 175.7MB in the beginning and 293.3MB in the end (delta: -117.7MB). Peak memory consumption was 33.8MB. Max. memory is 16.1GB. [2024-11-08 19:32:28,613 INFO L158 Benchmark]: Witness Printer took 88.13ms. Allocated memory is still 360.7MB. Free memory was 293.3MB in the beginning and 290.2MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-08 19:32:28,615 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 3 procedures, 41 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 36.8s, OverallIterations: 15, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1508 SdHoareTripleChecker+Valid, 8.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 647 mSDsluCounter, 893 SdHoareTripleChecker+Invalid, 7.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 340 mSDsCounter, 1231 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 4172 IncrementalHoareTripleChecker+Invalid, 5403 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1231 mSolverCounterUnsat, 553 mSDtfsCounter, 4172 mSolverCounterSat, 0.2s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 3725 GetRequests, 3342 SyntacticMatches, 63 SemanticMatches, 320 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37263 ImplicationChecksByTransitivity, 30.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 7.2s InterpolantComputationTime, 499 NumberOfCodeBlocks, 499 NumberOfCodeBlocksAsserted, 15 NumberOfCheckSat, 446 ConstructedInterpolants, 0 QuantifiedInterpolants, 2926 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 14 InterpolantComputations, 3 PerfectInterpolantSequences, 106/185 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - CounterExampleResult [Line: 641]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L627] CALL, EXPR _get_nondet_int(2, 5) VAL [\old(from)=2, \old(until)=5] [L620] int len = from; VAL [\old(from)=2, \old(until)=5, len=2, until=5] [L621] len < until && __VERIFIER_nondet_int() [L621] len < until && __VERIFIER_nondet_int() VAL [\old(from)=2, \old(until)=5, len=2, until=5] [L621] COND FALSE !(len < until && __VERIFIER_nondet_int()) [L624] return len; [L627] RET, EXPR _get_nondet_int(2, 5) [L627] const int len = _get_nondet_int(2, 5); [L628] SLL s = sll_create(len); [L628] CALL, EXPR sll_create(len) [L575] SLL head = ((void *)0); VAL [head={0:0}, len=2] [L576] EXPR len-- VAL [head={0:0}, len=1] [L576] COND TRUE len-- > 0 [L577] SLL new_head = (SLL) malloc(sizeof(struct node)); [L578] COND FALSE !(((void *)0) == new_head) VAL [head={0:0}, len=1, new_head={-1:0}] [L581] new_head->next = head [L582] head = new_head [L576] EXPR len-- VAL [head={-1:0}, len=0] [L576] COND TRUE len-- > 0 [L577] SLL new_head = (SLL) malloc(sizeof(struct node)); [L578] COND FALSE !(((void *)0) == new_head) VAL [head={-1:0}, len=0, new_head={-2:0}] [L581] new_head->next = head [L582] head = new_head [L576] EXPR len-- VAL [head={-2:0}, len=-1] [L576] COND FALSE !(len-- > 0) [L584] return head; [L628] RET, EXPR sll_create(len) [L628] SLL s = sll_create(len); [L629] CALL, EXPR _get_nondet_int(0, len - 1) VAL [\old(from)=0, \old(until)=1] [L620] int len = from; VAL [\old(from)=0, \old(until)=1, len=0, until=1] [L621] len < until && __VERIFIER_nondet_int() [L621] len < until && __VERIFIER_nondet_int() VAL [\old(from)=0, \old(until)=1, len=0, until=1] [L621] COND TRUE len < until && __VERIFIER_nondet_int() [L622] len++ VAL [\old(from)=0, \old(until)=1, len=1, until=1] [L621] len < until && __VERIFIER_nondet_int() VAL [\old(from)=0, \old(until)=1, len=1, until=1] [L621] COND FALSE !(len < until && __VERIFIER_nondet_int()) [L624] return len; [L629] RET, EXPR _get_nondet_int(0, len - 1) VAL [len=2, s={11603:0}] [L629] const int k = _get_nondet_int(0, len - 1); [L630] int i = 0; VAL [i=0, k=1, len=2, s={11603:0}] [L631] i < k && __VERIFIER_nondet_int() [L631] i < k && __VERIFIER_nondet_int() VAL [i=0, k=1, len=2, s={11603:0}] [L631] COND FALSE !(i < k && __VERIFIER_nondet_int()) [L636] EXPR \read(s) [L636] CALL, EXPR sll_length(s) [L587] int len = 0; VAL [head={-2:0}, len=0] [L588] COND FALSE !(\read(head)) VAL [head={-2:0}, len=0] [L588] COND TRUE \read(head) [L589] len++ [L590] EXPR head->next [L590] head = head->next [L588] COND FALSE !(\read(head)) VAL [head={-1:0}, len=1] [L588] COND TRUE \read(head) [L589] len++ [L590] EXPR head->next [L590] head = head->next [L588] COND TRUE \read(head) VAL [len=2] [L592] return len; [L636] RET, EXPR sll_length(s) [L636] COND TRUE k + len != sll_length(s) [L641] reach_error() VAL [i=0, s={11603:0}] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 151.0MB. Free memory was 95.7MB in the beginning and 95.6MB in the end (delta: 153.2kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 651.97ms. Allocated memory is still 151.0MB. Free memory was 107.6MB in the beginning and 86.8MB in the end (delta: 20.8MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 56.68ms. Allocated memory is still 151.0MB. Free memory was 86.8MB in the beginning and 84.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 35.07ms. Allocated memory is still 151.0MB. Free memory was 84.7MB in the beginning and 83.1MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 620.85ms. Allocated memory was 151.0MB in the beginning and 207.6MB in the end (delta: 56.6MB). Free memory was 83.1MB in the beginning and 175.7MB in the end (delta: -92.7MB). Peak memory consumption was 29.9MB. Max. memory is 16.1GB. * CodeCheck took 36878.98ms. Allocated memory was 207.6MB in the beginning and 360.7MB in the end (delta: 153.1MB). Free memory was 175.7MB in the beginning and 293.3MB in the end (delta: -117.7MB). Peak memory consumption was 33.8MB. Max. memory is 16.1GB. * Witness Printer took 88.13ms. Allocated memory is still 360.7MB. Free memory was 293.3MB in the beginning and 290.2MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be incorrect! [2024-11-08 19:32:28,654 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d797d243-11ea-4bbe-9f9c-945f74d9286e/bin/ukojak-verify-ImItNfHLgk/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE